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14 
Different Distributions
Uniform (flat) distribution: Triangular distribution Drawing Distributions, mix and match, Popcorn sound distribution 
Interactive web site java simulation www.shodor.org Theta (new & old & workbook) Ex24.01

15 
Normal Distribution Introduction
Calculation of the mean and standard deviation. Standard Deviation Normal Distribution  Normal Distribution  Comparing distributions

Standard Dev: Class notes  Blank notes Theta (new & old & workbook) Ex24.02 and Ex24.03 
Histograph & DistributionsIf a set of data is grouped and displayed using a histograph a distribution of the data is produced 

Even distribution No central tendancy 
Skewed distribution More data at lower values 
Two regions of distribution Two data bunches: around 20 and 40 